89872771 has 2 divisors, whose sum is σ = 89872772. Its totient is φ = 89872770.

The previous prime is 89872763. The next prime is 89872781. The reversal of 89872771 is 17727898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89872771 - 2³ = 89872763 is a prime.

It is a super-2 number, since 2×89872771² = 16154229934436882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89872781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44936385 + 44936386.

It is an arithmetic number, because the mean of its divisors is an integer number (44936386).

Almost surely, 2^89872771 is an apocalyptic number.

89872771 is a deficient number, since it is larger than the sum of its proper divisors (1).

89872771 is an equidigital number, since it uses as much as digits as its factorization.

89872771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 49.

The square root of 89872771 is about 9480.1250519178. The cubic root of 89872771 is about 447.9292029787.

The spelling of 89872771 in words is "eighty-nine million, eight hundred seventy-two thousand, seven hundred seventy-one".